Polished Tiger Iron slab TI378 polished crazy lace 80 mm x 80 mm

80 mm x 80 mm x 20 mm thick

Dimensions at widest points approximately 105 mm x 95 mm x 18

PA220  An Agate slab

Dimensions at widest points approximately 350 mm  x 190 mm x 9 mm thick

DO207  Dendritic Opal slab

Polished Tiger Iron slab TI378 polished crazy lace 80 mm x 80 mmTI378 Tiger Iron slab, polished on one side. Unusual specimen from a strongly weathered section of the outcrop. Dimensions at widest points approximately 190 mm x 120 mm x 15 mm thick. Weighs: 730 grams From the Cleaverville Formation, Ord Ranges near Port Hedland, Western Australia. Age is over 3 billion years. Tiger iron is a banded iron formation (BIF) or jaspilite that has alternating layers of black and brown hematite magnetite, red jasper and